PILOT STUDY OF CONCURRENT CHEMO ......PILOT STUDY OF CONCURRENT CHEMO-RADIOTHERAPY FOR ADVANCED...
Transcript of PILOT STUDY OF CONCURRENT CHEMO ......PILOT STUDY OF CONCURRENT CHEMO-RADIOTHERAPY FOR ADVANCED...
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PILOT STUDY OF CONCURRENT CHEMO-RADIOTHERAPY FOR
ADVANCED NASOPHARYNGEAL CARCINOMA
(Forum for Nuclear Cooperation in Asia)
Dr. Miriam Joy C. CalaguasDept. of Radiation Oncology
St. Luke’s Medical CenterQuezon City, Philippines
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LEAD AGENCY:
FORUM FOR NUCLEAR COOPERATION IN ASIA
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PROJECT BRIEF DESCRIPTION
• Non-randomized phase I-II trial.• Concurrent chemo-radiotherapy
standard radiotherapyweekly chemotherapy.
• chemotherapy may act or give synergistic effect w/ RT by sensitizing tumor cells.
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OBJECTIVES:• GENERAL:
Evaluate the acute & late toxicity of patients w/ NPC treated w/ standard RT concurrent w/ weekly chemotherapy.
• SPECIFIC:Determine the efficacy of the treatment
regimen as to response rate, duration of response & time-to-tumor progression or recurrence.
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SIGNIFICANCE OF THE STUDY:• 6th most common cancer among
Filipinos.• With improved RT techniques, local
control has also improved.• With chemotherapy, 3 year survival
has improved from 46% to 76%.• Incidence of distant failure reduced
from 35% to 13%.
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BRIEF LITERATURE REVIEW:• NPC is both radio & chemo sensitive.•• RADIOTHERAPY:RADIOTHERAPY:
- used as single modality for cure.
- highly curable in early stage.- poor outcome in advance
stages.- good local control.
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BRIEF LITERATURE REVIEW:
CHEMOTHERAPY:CHEMOTHERAPY:- undefined role.- taken as experimental.- adjuvant & neo adjuvant chemo
is not conclusive to benefit the patient.
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BRIEF LITERATURE REVIEW:
COMBINED CHEMORADIOTHERAPY:- concurrent chemoradiotherapy
improves survival in advance NPC.
- too toxic if given in large amount.- some chemotherapeutic regimen
are too toxic & has unacceptable morbidity.
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BRIEF LITERATURE REVIEW:
• Improved survival in cervical cancer is an attractive proposition in NPC.
• Weekly chemotherapy potentially cause continued enhancement of RT effect to tumor cells.
• Easier to increase or adjust in presence of acute complications.
• This regimen is a common practice in cervix cancer management.
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BRIEF LITERATURE REVIEW:
Why concurrent chemoradiotherapy?- acts synergistically with
radiation by sensitizing cell to RT.- chemotherapy synchronizes
cells into a more radiation sensitive phase and potentiate the effect of RT.
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RESEARCH METHODOLOGY
• Non-randomized phase I/II trial in Asia and Southeast Asian multi-center study:
• Participating countries:Vietnam (2 centers) Malaysia(2 centers)
Indonesia ChinaPhilippines ThailandKorea Japan
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RESEARCH METHODOLOGY
Conduct of study:This study will be conducted
according to Good Clinical Practice guidelines and Declaration of Helsinki.
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RESEARCH METHODOLOGY• Evaluation before treatment:• Medical history & PE• ENT evaluation• Biopsy/histopathology report• CXR, CT scan of post-nasal space up to
thoracic inlet. (MRI & bone scan optional.)
• Nutritional & dental assessment• Blood chemistries
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RESEARCH METHODOLOGY• Treatment protocol:
Concurrent chemoradiotherapy• RT: Standard fractionation (1.8 to 2
Gy/day for 6.5 to 7.5 weeks).• Chemotherapy: weekly cisplatinum
at 30 mg/m2, IV infusion.
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RESEARCH METHODOLOGY• Prophylactic medications:• Radiotherapy = dental clearance & oral
fluoride prophylaxis.• Chemotherapy = dexamethasone
p.o. given 2 days prior to start of chemo, routine hydration and anti-emetics.
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RESEARCH METHODOLOGYTarget population:
ONLY THREE PATIENTS IN THE PHILIPPINES
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RESEARCH METHODOLOGY
INCLUSION CRITERIA:Age range (20 - 70 y.o.)Biopsy proven WHO type 2 or 3, NPCStage III, IVA & IVB (TNM 1997)No distant metastasesNo previous history of cancer except
stage 0 carcinoma of cervix or basal cell carcinoma.
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RESEARCH METHODOLOGY
INCLUSION CRITERIA:WHO performance status 0-2WBC > 3,500/LPlatelet count > 100,000/LHemoglobin > 10 gm/dLCrea clearance > 6ml/minPatients should be accessible to
follow-up.
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RESEARCH METHODOLOGY
EXCLUSION CRITERIA:WHO type I NPCStage IV CWHO performance status > 3History of cancer within 5 years
except for skin cancer & CIS of cervix.
Previous RT to head and neck.
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RESEARCH METHODOLOGYEXCLUSION CRITERIA:
– severe concomitant medical illness like uncontrolled diabetes or hypertension.
– Concurrent chemotherapy or investigational therapy.
– pregnancy and/or lactation– patients who are unlikely to follow-
up.
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PATIENT ASSESSMENT
During treatment:- weekly assessment for toxicity.- toxicity grading according to
standard NCICTC/WHO criteria.- toxicity evaluation shall include the
skin, mucosa, nausea, vomiting and weight loss.
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Stopping rule:
WBC < 3,000/mm3
Platelet count <75,000/mm3
Fever > 38 0 CPerformance status: 3-4Grade 3 nausea
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Stopping rule:
When patients develop grade 3-4 non-hematological toxicities (mucositis), chemotherapy or radiotherapy should be interrupted according to institutional policy.
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CRITERIA FOR DISCONTINUATION OF TREATMENT
• Progressive disease (PD)• Very serious acute toxicities:
- grade 4 non-hematological toxicities.- septic shock due to hematologic
toxicities.- treatment related death.
• denial or withdrawal of the protocol treatment.
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CRITERIA FOR DISCONTINUATION OF TREATMENT
• Interruption of radiotherapy more than 3 weeks.
• Cases that are judged to be difficult to continue the protocol treatment by the responsible physician.
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PATIENTS’ PROFILE
• 3 patients enrolled in the study.• Age ranged from 46 – 62 years old.• All are males.• Filipino
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CASE 1:
• I. C. , 46 years old.• Chief complaint - blurring of vision.
- bilateral rectus musclepalsy.
• Biopsy of the nasopharyngeal mass:- poorly differentiated squamous cell
CA.
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CASE 1:
• CT scan of the nasopharynx:- soft tissue fullness in the left side of
nasopharynx with blunting of the torus tobarius.
- Fossa of Rossenmuller obliterated.• CT scan of the brain and orbit:
- negative
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CASE 1:
• Metastatic work-up : all are negative.• Clinical and radiologic diagnosis/
staging:poorly differentiated NPCA stage
1VA ( T4N1Mx ).
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CASE 2:R. F. , 62 years old.
Chief complaint - bilateral neck mass.
Biopsy of the right supraclavicular mass:
large cell undifferentiated CA
LCA ( - ), Cytokeratin (+)
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CASE 2:
CT Scan of the nasopharynx / neck:- soft tissue fullness on the right side of
nasopharynx extending to the oropharynx with attenuation of ipsilateral parapharyn-geal space.
-enlarged lypmh nodes both internal jugular, supraclavicular, posterior cervical,
submandibular.
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CASE 2:
• Metastatic work-up : negative• Clinical and radiologic staging:
undifferentiated NPCA stage 1VB( T2bN3bMx )
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CASE 3:
• H.R., 56 year old male• Chief complaint - bilateral neck mass
- bilateral rectus muscle palsy
• Biopsy of the neck mass:- Undifferentiated CA- Cytokeratin( -), LCA ( + )
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CASE 3CT Scan of the Nasopharynx/ Neck/ Head
- Soft tissue fullness obliterating the NP extending to posterior nasal cavity , sphenoid, ethmoid, clivus, prepontinecisterns.
- Enlarged lymph nodes in the internal jugular
chain, posterior cervical spaces.
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CASE 3:
• Metastatic work-up: negative• Clinical and radiologic diagnosis:
undifferentiated NPCA stage 1VB ( T4N3bMx ).
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RESULTS:
All of the 3 patients completed the prescribe dose of chemoradiotxEXCEPT for the 3rd patient with interruption on the 6th week for 1week because of grade 3 mucositis.
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TOXICITY INTRA-CHEMORT
PATIENT 1
WEEK 1
WEEK 2
WEEK 3
WEEK 4
WEEK 5
WEEK 6
WEEK 7
WEEK 8
SKIN 0 0 2 2 2 2 3 3
MUCOSITIS 0 0 1 2 2 2 2 2
NAUSEA 0 0 0 0 0 0 0 0
VOMITING 0 0 0 0 0 0 0 0
WEIGHT LOSS 0 0 0 0 0 0 0 0
HEMATOLOGC 0 0 0 0 0 0 0 0
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TOXICITY INTRA-CHEMORTPATIENT 2
WEEK 1
WEEK 2
WEEK 3
WEEK 4
WEEK 5
WEEK 6
WEEK 7
WEEK 8
SKIN 0 1 2
3
3
3
3 3
MUCOSITIS 0 0 2 2 2 2 2 2
NAUSEA 0 0 0 0 0 0 0 0
VOMITING 0 0 0 0 0 0 0 0
WEIGHT LOSS 0 0 0 0 0 0 0 0
HEMATOLOGIC 0 0 0 0 0 0 0 0
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TOXICITY INTRA CHEMORTPATIENT 3
WEEK 1
WEEK 2
WEEK 3
WEEK 4
WEEK 5
WEEK 6
WEEK 7
WEEK 8
SKIN 0 0 1 2 2 3 2 2
MUCOSITIS 0 1 2 2 2 3 2 3
NAUSEA 0 0 0 0 0 1 0 1
VOMITING 0 0 0 0 0 1 0 1
WEIGHT LOSS 0 0 0 0 0 0 0 0
HEMATOLOGIC 0 0 0 0 0 0 0 0
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FOLLOW-UP:
CT Scan due for: Case 1 - Dec. 2003 Case 2- Jan. 2004Case 3 - Mar. 2004
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MARAMING SALAMAT PO!MARAMING SALAMAT PO!
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